Question

An electric lamp is rated 1500 W, 220 V.

i) Find the safe current which can flow through it

ii) Convert power into kW

iii) Can fuse of current rating 5A be used with it?​

Answer 1

i) i=P/V=1500/220=6.82A

ii) 1W=1/1000KW
=> 1500W=1.5KW

iii) no it can’t be used because the lamp supports up to 6.8A.